Guard for an intake channel or blow channel of a power tool and power tool with such a guard

A guard for an intake channel or blow channel of a power tool, the guard comprising:

• a first rib comprising a longitudinal direction, wherein the first rib comprises a first rib section, wherein the first rib section extends along the longitudinal direction of the first rib from a first end of the first rib section to a second end of the first rib section, wherein the first rib section, considered by itself, comprises an inherent frequency;
• one or more first disruptive bodies arranged on the first rib section between the first end of the first rib section and the second end of the first rib section, wherein the one or more first disruptive bodies are configured to translatorily vibrate together with the first rib section;
• wherein the first rib section and the one or more first disruptive bodies form a vibration system with a system inherent frequency, wherein the inherent frequency of the first rib section is different from the system inherent frequency.